see on one's mind.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
How to use on the brain in a sentence
Hubbard himself, who seemed to have cellar-on-the-brain, would have found nothing remarkable in it.A Case in Camera | Oliver Onions